
<?php if(Yii::app()->user->hasFlash('power')): ?>
    	<?php echo mb_detect_encoding(Yii::app()->user->getFlash('power'));?>
<?php else:?>
		Hello world~~~~~
<?php endif;?>

<form action="" method="post">
	<input type="text" name="name" id="name" />
	<button>Hello</button>
</form>